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Re: Stack protection via GCC's `-fstack-protector'


From: Stefan Reinauer
Subject: Re: Stack protection via GCC's `-fstack-protector'
Date: Wed, 8 Nov 2006 23:36:44 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

Hi,

* Samuel Thibault <address@hidden> [061108 23:14]:
> Thomas Schwinge, le Wed 08 Nov 2006 22:40:54 +0100, a écrit :
> >         then cat gnumach-undef-bad; exit 2; else true; fi
> > stack_chk_fail
> > 
> > Is it feasible to have the `-fstack-protector' functionality in GNU Mach
> > and GRUB2 (and how to do that, then) or shall we unconditionally pass
> > `-fno-stack-protector' if available?
> 
> I'd say it shouldn't be very hard to provide a stack_chk_fail function,
> even if all it does is just panic().
 
wont this add unnecessary bloat to the binary? No, not the function
calling panic. Or are we seriously concerned about buffer overflows 
in the bootloader?

S.

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